Quick change tool retention device for power operated mechanism

A quick-change tool retention device for a power-operated mechanism, said device comprising a body member provided with front and rear walls and an external peripheral wall, an interior cavity in said body member, said interior cavity having side walls perpendicular to a longitudinal axis of said body member and a bottom face, said body member further having an axial aperture extending from said front wall into said interior cavity in said body member, attachment means provided by said body member for securing said body member to said power operated mechanism, an aperture in said external peripheral wall extending into said interior cavity perpendicular to said axis of said body member, said body member further provided with an actuator member extending through said aperture in said exterior peripheral wall into said interior cavity, a spring biasing means in said interior cavity abutting the wall of the interior cavity opposing the aperture, said actuator member being associated with said spring-biasing means in said interior cavity and arranged to retain a shank end of a tool inserted through said axial aperture, said spring-biasing means being arranged to move between a first tool-retaining position and a second tool-releasing position upon pressure being applied to said actuator member, whereby a given tool may be quickly installed and removed from said tool retention device.